import axios from 'axios'
import qs from 'qs'
import merge from 'lodash/merge'
import { baseConfig } from './index'

const http = axios.create({
  timeout: baseConfig.timeout,
  withCredentials: true,
  headers: {
    'Content-Type': 'application/json; charset=utf-8'
  }
})

/**
 * 请求拦截
 */
http.interceptors.request.use(config => {
  if (typeof http.requestBack === 'function') {
    http.requestBack(config)
  }
  return config
}, error => {
  return Promise.reject(error)
})

/**
 * 响应拦截
 */
http.interceptors.response.use(response => {
  if (typeof http.responseBack === 'function') {
    http.responseBack(response)
  }
  return response
}, error => {
  return Promise.reject(error)
})

/**
 * 请求地址处理
 * @param {*} actionName action方法名称
 */
http.adornUrl = (actionName) => {
  // 非生产环境 && 开启代理, 接口前缀统一使用[/proxy/]前缀做代理拦截!
  ////console.log(process.env.NODE_ENV)
  return (http.env !== 'production' ? http.proxy : window.SITE_CONFIG.baseUrl) + actionName
}

/**
 * get请求参数处理
 * @param {*} params 参数对象
 * @param {*} openDefultParams 是否开启默认参数?
 */
http.adornParams = (params = {}, openDefultParams = true) => {
  var defaults = {
    't': new Date().getTime()
  }
  return openDefultParams ? merge(defaults, params) : params
}

/**
 * post请求数据处理
 * @param {*} data 数据对象
 * @param {*} openDefultdata 是否开启默认数据?
 * @param {*} contentType 数据格式
 *  json: 'application/json; charset=utf-8'
 *  form: 'application/x-www-form-urlencoded; charset=utf-8'
 */
http.adornData = (data = {}, openDefultdata = true, contentType = 'json') => {
  var defaults = {
    't': new Date().getTime()
  }
  data = openDefultdata ? merge(defaults, data) : data
  return contentType === 'json' ? JSON.stringify(data) : qs.stringify(data)
}

/**
 * 导出请求拦截
 * @param fun
 * @param env
 */
export const httpRequest = (fun, env, proxy = '') => {
  http.proxy = proxy
  http.env = env
  http.requestBack = fun
}

/**
 * 导出响应拦截
 * @param fun
 * @param env
 */
export const httpResponse = (fun) => {
  http.responseBack = fun
}

export default http
